Worth



(No Model.) 2 SheetsSheet 1.

0. W.ELLSWORTH.

MACHINE FOR SEAMING ours. No. 478,5.80. Patented July 12, 1892.

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UNITED STATES PATENT OFFICE.

, CHARLES .w. nL 'swoRTH, or CHICAGO, ILLINOIS, ASSIGNOR TO THE CHICAGO STAMPING COMPANY, OF SAME PLACE.

MACHINE FOR SGEAMINGVICANS.

SPECIFICATION forming part of Letters Patent No. 478,580, dated July 12, 1892. Application filed December 28, 1891- Serial No.416,331. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES W. ELLS- WORTH, a citizen of the United States, residing at Chicago, in the county of .Cook and State of Illinois, have invented certain new and useful Improvements in Machines for Seaming Cans, of which the following is aspecification.

The present invention relates to a machine for securing the cover to the body of the can by folding or rolling themargin of the cover and the upper margin of the body together, thereby forming a seam and dispensing with the use of solder. Heretofore machines for doin g this work have usually been so constructed that the seaming-tool remains at restwhile the can is rotated to bring all parts of its circumference under the action of the tool. The objection to a machine operating in this way is that the rotation of the can will cause more or less of its contents to be thrown out by centrifugal force, and to obviate this diffi culty a machine has been constructed in which the can remains at rest while the seamingtool is carried around it ina path concentric with its axis.

The object of my present invention is to provide an improved machine of the latter character; and to this end said invention consists in certain features of novelty that are particularly pointed out in the claims here inafter.

In the accompanying drawings, which are made a part of this specification, Figure l is a side elevation of a machine embodying the invention. Fig. 2 is a vertical section of some of the parts thereof on a larger scale, the Cutting plane ot the section being indicated by the line 2 2, Fig. 3. Fig. 3 is a horizontal section of the improved machine on the line 3 3, Fig. 2, the scale being the same as Fig. 2. Fig. 4c is an elevation of the seaming-roller and the mechanism for operating it viewed in the direction of the arrow in Fig. 2. Figs. 5 and 6 are sections of the upper portion of the can body and cover as they are before and after the seaming operation, respectively.

A is the standard of the machine, having on the front side a vertical guide (1, upon which a bracket A fits and is adapted to slide up and down a T-bolt A whose stem passes through a vertical slot in the face of the guide, and a nut or being provided for fixing the bracket at any desired height. The bracket is provided with a vertical socket, through which passes the stem 17 of a disk 13, that forms the table for supporting the can 0 while being. seamed, said stein being suitably connected with a trea'dle, a lover, or other suitable mechanism whereby it may be moved up and down, for a purpose that will appear presently.

Two arms D project upward from the stand;

ard, and in them is journaled a shaft D, having betweensaid arms cone-pulleys D for receiving the driving-belt, and having, also, a beveled gearwheel D that is situated between two horizontally projecting arms E and E. r F is a beveled gear-wheel meshing with the wheel D resting upon the arm E and secured by means of a clamp-screw F or other suit able device to a hollow shaft G, which passes through a bearing formed for it through the arm E, whereby it is sustained in vertical position. The lower end of the shaft G is provided with an enlarged head G, having in its under side a depression g.

H is a hollow stem that fits snugly inside of the shaft G and passes completely through it and through a vertical opening formed for itthrough the arm E. Its lower end is provided with a flange h, which fits in the recess g, and its upper endis screw-threaded for the reception of nuts H", whereby it may be adjusted, a binding-screw H being tapped into the arm E and brought against it for holding it fixedly in place when properly adjusted.

I is a spring situated in a counterbore h in the lower end of stem H and'bearing downward against the stem j of a disk or plate J, which constitutes the V chuck for holding the can,whereby said chuck is held normally in the position shown by Fig. 2, its movement below this point being prevented by the contact of a pin carried by the stem j, with the bottom of a slot 71 formed in stem H. The upward movement of the stem j is limited by contact with the end of a rodK, that occupies the bore of the stem H, its upper part being provided with a non-circular head 70 for receiving a wrench and with screw-threads for engaging corresponding threads on the stem H, whereby said rod may be adjusted, a locknut is being provided for fixing it when adjusted to the desired position.

Fitted loosely upon the shaft G, below the arm E, so as to be capable of sliding vertically thereon, is a collar L, having a peripheral groove Z, which is occupied by studs m, provided with anti-friction rollers m, preferably, and carried by a lever M, that is fulcrumed to the standard at M and provided with a handle M The lever may extend straight out in front of the machine; but I prefer to bend it to the right, so that it will be more convenient to the operator, and I prefer, also, to split it at 9773, so as to bring it on both sides of the collar, and thereby enable the use of two studs m, situated at diametrically-opposite points.

N is a stud projecting radially from the head G,h-aving a vertical slot at, in which fits a lever O, and having a horizontal slot n, through which passes the bolt 0, upon which said lever is fulcrumed. The sides of the stud are provided with depressions 01. which are occupied by projections 0 on the washers 0 that are placed between said stud and the head andnut of the bolt, whereby the bolt may be locked, so as to prevent its displacement after it has been placed in the desired position.

P P are studs projecting radially from the head G, and Q Q are blocks mounted to slide thereon, said blocks being cast integrally with a C-shaped housing q, in which is journaled the seaming-roller R. The lower end of the lever O is bifurcated, so as to engage a pin q, that extends from one of the blocks to the other and may be integral with them, while the upper end of said lever is pivotally connected to one end of a link S, the other end of which is pivotally connected to the collar L.

If desired, one of the studsPand one of the blocks Q may be dispensed with. When not in use the parts occupy the positions in which they are shown by Fig. 2.

When the can is filled, the cover is put in place and the can placed on thetable B. The handle M of lever M is then elevated, which brings the parts to the positions shown by dotted lines in Fig. 2, withdrawing the seaming-roller. The table B is then raised until the top of the can comes in contact with the chuck J and forces it from the position shown by Fig. 2 upward in opposition to the spring Iunti'l its upward movement is arrested by the contact of the stem j with the end of the rod K, as shown by Fig. 1. This rod should be adjusted to such position that when it arrests the upward movement of the parts the marginal flanges of the can and its cover are in position to enter the groove in the periphery of the seaming-roller and be thereby rolled together into a seam when said roller is moved inward to the position shown nsane by full lines and carried around the can. This inward movement of the seaming-roll r is produced by a downward movement of t e collar L, acting through the medium of the link S, lever O, and slide Q, an upward movement of said collar producing an outward movement of said roller. The circular movement of the seaming-tool around the can is produced by the rotation of the head G, to which motion is imparted rom pulley D through gear wheels D and E and hollow shaft G. v

By making the connection between the gearwheel F and shaft G strong enough to support said shaft and its accessories, which can easily be done, the flange 72. may be omitted, in which case the stem H will 'no longer perform the office of a partial support for said shaft and accessories, but will be left the sole duty of supporting the chuck J. The sole object of the rod K is to form an adjustable stop v for limiting the upward movement of the chuck, and it may be dispensed with. Furtherm ore, the chuck maybe fixed rigidly to the stem H, in which case the spring I may also be dispensed with.

The term chuck as used in this specification is intended to include any device for engaging the can, whatever may be its size 'or other characteristics.

By changing the character of the tool seams differing from the one shown by Fig. 6 may be made.

What I claim as new, and desire to secure by Letters Patent, is-

1. The combination, with a rotary head and a tool carried thereby, of the chuck J, movable toward and from said head, a stem by which said chuck is carried, and means for rigidly holding said stem against rotation, substantially as set forth.

2. The combination, with a rotary head and i a tool carried thereby, of the chuck J, movable toward and from said head, an adjustable stop for limiting their approach, a stem supporting the chuck, and means rigidly holding said stem against rotation, substantially as set forth.

3. The combination, with a rotary head and a tool carried thereby, of the stem H, having the bore h, means rigidily holding said stem against rotation, the chuck J, having stem j fitting in said bore, and means for limiting the downward movement ofthestem j, substantially as set forth.

4. The combination, with-a rotary head and a tool carried thereby, of the stem I-I, having the bore h, and means rigidly holding said stem against rotation, the chuck J, having stem j fitting in said bore, and means for limiting the movement of the stem j either upward or downward, substantially as set forth.

5. The combination, with a rotary head and a tool carried thereby, of the stem H, having the bore h, the chuck J ,having stem j fitting in said bore, means for limiting the downward movement of the stem j, and the adjustable rod K for limiting its upward movement, substantially as set forth.

6. The combination, with a rotary head and a tool carried thereby, of the stem H, having the bore h, the chuck J, having stem j fitting in said bore, the spring I, situated in said bore and bearing against the stem j, and means for limiting the downward movement of said stem,-substantially as set forth.

7. The combination, with the frame having arms E and E, of the hollow shaft G, jour-i tially as set forth.

9. The combination, with the frame having the arms E and E, of the hollow shaft G, journaled in the arm E, the gear-wheel F, fixed with relation to said shaft and resting upon the arm E, a tool carried by the shaft, the stem H, fixed to the arm E and extending downward through said shaft, and a chuck supported by said stem, substantially as set forth.

10. The combination, with a rotary head, of a stud projecting therefrom, a lever located in a plane parallel with the axis of said head, fulcrumed to said stud, a tool controlled by the lever, and means for operating the lever, substantially as set forth.

11. The combination, witha rotary head, of the studs N and P, projecting therefrom, the block 0, mounted to slide on stud P, the tool carried by said block, the lever O, fulcrumed to stud N and engaging block Q, and means for operating said lever, substantially as set forth.

12. The combination,with a rotary head, of the stud N, projecting therefrom, a lever fulcrumed thereto and adjustable on said stud toward or from the headga tool controlled by V the lever, and means for controlling the lever,

substantially as set forth.

CHARLES W. ELLSVORTH. 

